Prognostic Impact of Weight Change During Adjuvant Chemotherapy in Patients With High-Risk Early Breast Cancer: Results From the ADEBAR Study |
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Authors: | Nikola S Mutschler Christoph Scholz Thomas WP Friedl Thomas Zwingers Peter A Fasching Matthias W Beckmann Tanja Fehm Svjetlana Mohrmann Jessica Salmen Carola Ziegler Bernadette Jäger Peter Widschwendter Nikolaus de Gregorio Fabienne Schochter Sven Mahner Nadia Harbeck Tobias Weissenbacher Julia Jückstock Brigitte Rack |
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Institution: | 1. Department of Obstetrics and Gynecology, University Hospital, Heinrich Heine University, Düsseldorf, Germany;2. Department of Obstetrics and Gynecology, St Elisabeth Hospital, Cologne, Germany;3. Department of Obstetrics and Gynecology, University Hospital, Ulm University, Ulm, Germany;4. Estimate GmbH, Augsburg, Germany;5. Department of Obstetrics and Gynecology, University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander-University Erlangen, Erlangen, Germany;6. Department of Obstetrics and Gynecology, LMU Munich, Munich, Germany;7. Breast Center, Department of Obstetrics and Gynecology, LMU Munich, Munich, Germany |
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Abstract: | BackgroundIn addition to established prognostic factors, individual lifestyle-associated factors, such as obesity, physical activity, and diet, seem to modulate the course of breast cancer. The aim of this analysis was to evaluate the influence of weight changes during adjuvant chemotherapy on outcome in a large multicenter prospectively randomized trial.Patients and MethodsThe ADEBAR trial compares a sequential chemotherapy consisting of epirubicin/cyclophosphamide followed by docetaxel to an epirubicin/5-fluorouracil/cyclophosphamide regimen in patients with lymph node–positive early breast cancer. Body weight was measured before each cycle of chemotherapy. According to the relative weight change (≥ 5%) between the first and the last cycle, patients were categorized into the weight gain, weight loss, or stable weight group. Overall survival (OS) and disease-free survival were assessed by univariate Kaplan-Meier and multivariate Cox regression analyses.ResultsConcise data from 1080 of 1493 participants who completed all cycles of chemotherapy were available for analysis. Of 307 patients (24.8%) whose weight changed by ≥ 5%, 120 patients (11.1%) lost and 187 (17.3%) gained weight. Multivariate analysis showed a significant independent effect of weight change on OS (P = .039), but not on disease-free survival (P = .111). Both weight change groups had a worse OS compared to patients with stable weight (weight gain: hazard ratio, 1.55; 95% confidence interval, 1.01-2.40; P = .047; weight loss: hazard ratio, 1.55; 95% CI, 0.97-2.47; P = .067).ConclusionWeight change of > 5% during adjuvant chemotherapy in patients with high-risk early breast cancer is associated with poor OS. |
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Keywords: | breast cancer chemotherapy prognosis survival weight |
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